HDC1050DMBR Equivalent & Substitute Parts

Part Overview

The HDC1050DMBR is a humidity and temperature sensor manufactured by Texas Instruments, designed for I2C digital output applications in surface mount configurations. This part operates across a 0–100% RH range with ±3% RH accuracy and a 30-second response time. The device is classified as "Not For New Designs," indicating it has been superseded in Texas Instruments' product portfolio. Organizations using this component in active applications require equivalent or substitute parts to ensure supply continuity and design flexibility.

Substiute Parts

HDC1050DMBR

Texas InstrumentsIn Stock: 3462HDC1050DMBR Datasheet

Current PartRFQ

HDC1080DMBR

Texas InstrumentsIn Stock: 45309HDC1080DMBR Datasheet

MFR RecommendedRFQ

HDC1050DMBT

Texas InstrumentsIn Stock: 1208HDC1050DMBT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HDC1050DMBR are classified based on electrical and mechanical compatibility within the following criteria:

Parametric Equivalents maintain identical or functionally equivalent specifications across all critical parameters: sensor type, humidity range, I2C output protocol, supply voltage range, mounting type, package form factor, and compliance certifications. These parts are direct functional replacements.

Manufacturer-Recommended Upgrades are active products that supersede the original part, offering improved performance specifications while maintaining backward compatibility in key electrical interfaces and physical form factors.

The allowed substitution parameters are:

• Sensor Type: Humidity and Temperature
• Humidity Range: 0–100% RH
• Output Type: I2C digital interface
• Supply Voltage: 2.7V–5.5V range
• Mounting Type: Surface Mount
• Package Form Factor: 6-WDFN Exposed Pad
• RoHS and MSL Compliance: ROHS3 Compliant, MSL 1

Parameter Comparison

Engineering Selection Recommendations

HDC1050DMBT (Parametric Equivalent): This part maintains identical electrical and mechanical specifications to the HDC1050DMBR, including 11-bit resolution, ±3% RH accuracy, 30-second response time, and –20°C to +60°C operating range. However, the HDC1050DMBT is classified as Obsolete, making it unsuitable for new procurement or long-term supply assurance. Use only if existing inventory is available and supply continuity is not a concern.

HDC1080DMBR (Manufacturer-Recommended Upgrade): This is the active product recommended by Texas Instruments for applications previously served by the HDC1050DMBR. The HDC1080DMBR offers improved specifications: 14-bit output resolution (versus 11-bit), ±2% RH accuracy (versus ±3% RH), and 15-second response time (versus 30 seconds). The operating temperature range extends to +85°C (versus +60°C). All electrical interfaces, supply voltage requirements, I2C protocol, and physical package form factor remain compatible. ROHS3 compliance and MSL 1 rating are maintained. This part is the preferred choice for new designs and supply continuity.

Frequently Asked Questions (FAQ)

Q: Can HDC1050DMBT be used as a direct replacement for HDC1050DMBR?

A: Yes, from an electrical and mechanical standpoint. Both parts share identical sensor specifications, I2C output protocol, supply voltage range (2.7V–5.5V), operating temperature range (–20°C to +60°C), and 6-WDFN package form factor. However, HDC1050DMBT is classified as Obsolete, limiting its availability for future procurement.

Q: What are the key differences between HDC1050DMBR and HDC1080DMBR?

A: The HDC1080DMBR provides enhanced performance: 14-bit output resolution versus 11-bit, ±2% RH accuracy versus ±3% RH, and 15-second response time versus 30 seconds. The operating temperature range is extended to +85°C. All other parameters—sensor type, humidity range, I2C interface, supply voltage, mounting type, and package—remain identical and compatible.

Q: Are there any firmware or software changes required when switching from HDC1050DMBR to HDC1080DMBR?

A: The I2C communication protocol and register structure are compatible between these devices. However, the increased output resolution (14-bit versus 11-bit) means firmware must be updated to correctly interpret the higher-resolution data format. Consult Texas Instruments datasheets for register mapping and data interpretation requirements.

Q: What is the packaging difference between HDC1050DMBR and HDC1050DMBT?

A: HDC1050DMBR is supplied in Tape & Reel (TR) packaging, while HDC1050DMBT is supplied in Cut Tape (CT) & Digi-Reel® packaging. Both use the same 6-WSON (3×3) component form factor. The packaging difference affects handling and storage but does not impact electrical or mechanical compatibility.

Q: Is the HDC1080DMBR available in the same packaging as HDC1050DMBR?

A: HDC1080DMBR is supplied in Cut Tape (CT) & Digi-Reel® packaging, whereas HDC1050DMBR is supplied in Tape & Reel (TR). Both use the identical 6-WSON (3×3) physical package. Verify packaging requirements with your procurement process.

Q: Are all three parts RoHS and REACH compliant?

A: Yes. HDC1050DMBR, HDC1050DMBT, and HDC1080DMBR are all ROHS3 Compliant and REACH Unaffected. MSL rating is 1 (Unlimited) for all three parts.